Question

define law of refraction​

Answer 1

Answer:

the principle that for a ray, radar pulse, or the like, that is incident on the interface of two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocity of the ray in the first medium to the velocity in the second medium and the incident ray, ...

Answer 2

The state of change in the direction of light as it passes from one obvious object to another is called refraction. Opposition rules:

(i) Incident ray, discarded ray and normal to two visible media link at the time of the incident, all lying on the same plane.